Range hood
Patent Information
- Application Number
- CN202522588902.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-05
AI Technical Summary
The baffles of existing range hoods are prone to grease buildup, making cleaning difficult and causing grease to escape, which affects kitchen hygiene and user health.
Design a range hood including a main body, a baffle assembly and a cleaning component. The baffle assembly can move in a controlled manner to form a negative pressure zone. The cleaning component comes into contact with the baffle assembly during its movement to remove grease. The baffle uses a flexible material and a non-linear path to optimize the fluid channel.
It effectively reduces the escape of cooking fumes, improves smoke extraction efficiency and user experience, ensures kitchen air quality, and simplifies the cleaning process of the baffle components.
Smart Images
Figure CN224932816U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of oil fume extraction technology, and in particular to an oil fume extraction hood. Background Technology
[0002] In the kitchen environment, the range hood is a crucial smoke extraction device, and its smoke extraction effect directly affects the user's cooking experience and health. Some range hoods use baffles to divert oil fumes, but these baffles tend to accumulate oil fumes and are inconvenient to clean. Utility Model Content
[0003] Therefore, it is necessary to provide a range hood that addresses the problem of inconvenient cleaning of oil fumes from the baffle.
[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:
[0005] In a first aspect, embodiments of this application provide a range hood, including:
[0006] The main body is provided with a smoking surface, and the smoking surface has a smoking port;
[0007] A baffle assembly is mounted on the main body and is controllably movable relative to the main body to open or close the smoke inlet. When the baffle assembly is open, it defines a negative pressure zone with the main body, and the smoke inlet is located in the negative pressure zone.
[0008] A cleaning component is disposed on both sides of the baffle assembly, and during the movement of the baffle assembly, the cleaning component comes into contact with a portion of the surface of the baffle assembly.
[0009] In one embodiment of the first aspect, the baffle assembly includes an opening and closing plate and two baffles, the opening and closing plate being rotatable relative to the main body for opening and closing the smoke inlet; the two baffles are disposed opposite to each other at both ends of the opening and closing plate, and when the opening and closing plate opens the smoke inlet, each baffle and the opening and closing plate enclose the negative pressure zone.
[0010] In one embodiment of the first aspect, the cleaning component includes two cleaning brushes, each of which is disposed at both ends of the opening and closing plate, and during the movement of the baffle, each of the cleaning brushes contacts a corresponding baffle.
[0011] In one embodiment of the first aspect, the cleaning component includes four cleaning brushes, with two cleaning brushes provided at each end of the opening and closing plate, and one cleaning brush provided on each opposite side of each of the baffles.
[0012] In one embodiment of the first aspect, the main body has a receiving groove, and the cleaning component is installed in the receiving groove.
[0013] In one embodiment of the first aspect, the baffle can be controlled to be housed within the receiving groove.
[0014] In one embodiment of the first aspect, one end of the baffle is connected to the main body and the other end is connected to the opening and closing plate so as to be able to move with the opening and closing plate.
[0015] In one embodiment of the first aspect, the baffle has a fan-shaped structure and is made of a foldable flexible material.
[0016] In one embodiment of the first aspect, the baffle assembly further includes a drive member mounted on the body, the drive member having an output end connected to the baffle to drive the baffle to rotate.
[0017] In one embodiment of the first aspect, the baffle is not located within the projection plane of the body along the vertical direction of the smoking surface.
[0018] Compared to related technologies, the beneficial effects of this application are as follows: This application provides a range hood, including a main body, a baffle assembly, and a cleaning component. The baffle assembly defines a negative pressure zone, reducing the flow area of oil fumes and allowing oil fumes near the cookware to be drawn in more concentratedly, reducing the escape of oil fumes. Simultaneously, during the movement of the baffle assembly, the cleaning component contacts the baffle assembly, effectively removing surface oil stains from the baffle assembly. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the axial structure of the range hood in some embodiments of this application. Figure 1 ;
[0021] Figure 2 This is a front view structural diagram of the range hood in some embodiments of this application;
[0022] Figure 3 This is a schematic diagram of the closed structure of the opening and closing plate in some embodiments of this application;
[0023] Figure 4 for Figure 1 The diagram shows an enlarged view of part A.
[0024] Figure 5This is a schematic diagram showing the distribution of cleaning brushes and baffles in some embodiments of this application;
[0025] Figure 6 This is a side view of the range hood in some embodiments of this application;
[0026] Figure 7 This is a schematic diagram of the baffle assembly in some embodiments of this application;
[0027] Figure 8 This is a schematic diagram of the axial structure of the range hood in some embodiments of this application. Figure 2 ;
[0028] Figure 9 This is a schematic diagram of the baffle structure in some embodiments of this application.
[0029] Explanation of reference numerals in the attached figures:
[0030] 100. Range hood; 110. Main body; 111. Smoke inlet; 112. Receiving slot; 120. Baffle assembly; 121. Opening and closing plate; 122. Baffle; 123. Drive component; 130. Cleaning component; 131. Cleaning brush. Detailed Implementation
[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0032] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0033] Furthermore, where the term "and / or" appears, "and / or" merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. Where the terms "first" and "second" appear, these terms are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0035] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0036] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0037] In related technologies, side-draft range hoods have an open design between their intake and the cookware, resulting in the hood drawing in mostly ambient air rather than cooking fumes, causing fumes to escape. This escape not only affects kitchen hygiene but may also adversely impact user health.
[0038] See Figure 1 As shown, to improve the above-mentioned problems, embodiments of this application provide a range hood 100, which can effectively improve the phenomenon of oil fume escape. The range hood 100 includes a main body 110 and a baffle assembly 120, wherein the main body 110 is provided with a smoke-absorbing surface, and the smoke-absorbing surface has a smoke-absorbing opening 111. The baffle assembly 120 is installed on the main body 110 and can be controlled to move relative to the main body 110 to open or close the smoke-absorbing opening 111. When the baffle assembly 120 is open, it defines a negative pressure zone with the main body 110, and the smoke-absorbing opening 111 is located in the negative pressure zone.
[0039] It is understandable that the main body 110 has a fan and air duct inside, so as to draw in the oil fumes from the smoke inlet 111 and then exhaust them. This is a technical means that can be known to those skilled in the art, and will not be described in detail here.
[0040] Continue reading Figure 2 As shown, the smoke extraction surface of the main body 110 is close to the stove, allowing the smoke extraction port 111 to quickly absorb cooking fumes. The smoke extraction port 111 has a rectangular structure to increase the smoke extraction area and absorb fumes from a larger area. A baffle assembly 120 surrounds three sides of the smoke extraction port 111, leaving only the bottom of the port open to facilitate the entry of fumes. Thus, the baffle assembly 120 blocks air from the outside of the smoke extraction port 111, reducing the area for fume flow. Based on fluid dynamics principles, when the fluid pressure is constant, a smaller fluid channel area results in a faster fluid velocity and a greater negative pressure, attracting surrounding fluid to accelerate towards the negative pressure zone and improving overall smoke extraction efficiency.
[0041] Through the above structural design, the range hood 100 can form a stronger and more concentrated negative pressure zone during operation, so that the fumes are efficiently sucked in and discharged before they spread to other areas of the kitchen, thereby significantly improving the air quality in the kitchen, enhancing the user's cooking experience, and protecting the user's health.
[0042] Furthermore, during prolonged use, the surface of the baffle assembly 120 is prone to accumulating oil fumes, requiring frequent cleaning and consuming labor. To address this, the range hood 100 provided in this embodiment of the application also includes a cleaning component 130, which is disposed on both sides of the baffle assembly 120, and during the movement of the baffle assembly 120, the cleaning component 130 contacts a portion of the surface of the baffle assembly 120.
[0043] For example, the baffle assembly 120 has two operating states. In the initial state where the range hood 100 is not operating, the baffle assembly 120 is in contact with the main body 110 and the smoke inlet 111 is closed. In the operating state of the range hood 100, the baffle assembly 120 is controlled to open the smoke inlet 111 and forms a negative pressure zone with the main body 110. The cleaning component 130 is disposed on the movement path of the baffle assembly 120. When the cleaning component 130 is fixed, the baffle assembly 120 contacts the cleaning component 130 during movement, thereby cleaning the grease from the baffle assembly 120 through the cleaning component 130.
[0044] In some embodiments, the baffle assembly 120 includes an opening and closing plate 121 and two baffles 122. The opening and closing plate 121 is rotatable relative to the main body 110 for opening and closing the smoke inlet 111. The two baffles 122 are disposed opposite to each other at both ends of the opening and closing plate 121, and when the opening and closing plate 121 opens the smoke inlet 111, each baffle 122 and the opening and closing plate 121 enclose a negative pressure zone.
[0045] Continue reading Figure 3 As shown, the upper end of the opening and closing plate 121 is rotatably connected to the main body 110 and is located above the smoke inlet 111. Thus, the opening and closing plate 121 can automatically rotate under the drive of the motor to open or close the smoke inlet 111 according to the start-up status of the range hood 100. The length of the opening and closing plate 121 is greater than or equal to the length of the smoke inlet 111. Two baffles 122 are positioned opposite each other at both ends of the opening and closing plate 121, thereby sealing both sides of the smoke inlet 111 and forming an open negative pressure zone below in cooperation with the opening and closing plate 121.
[0046] Continue reading Figure 4 As shown, in some embodiments, the cleaning component 130 includes two cleaning brushes 131, each of which is disposed at both ends of the opening and closing plate 121, and during the movement of the baffle 122, each cleaning brush 131 contacts a corresponding baffle 122.
[0047] For example, the cleaning brush 131 can be a sponge, a brush, or other cleaning product, and each baffle 122 is provided with a corresponding cleaning brush 131. The cleaning brush 131 is located on one side of the baffle 122 and is fixed to the main body 110, so that during the opening or closing movement of the baffle 122, the cleaning brush 131 abuts against the surface of the baffle 122, thereby cleaning the baffle 122.
[0048] Optionally, the cleaning brush 131 can be located on the inner or outer side of the baffle 122, and can be located on the side with a higher degree of dirt and easier cleaning, depending on actual needs. It should be noted that in this embodiment, the inner side refers to the side where the two baffles 122 are close to each other, and the outer side refers to the side where the two baffles 122 are far apart from each other.
[0049] Continue reading Figure 5 As shown, in some embodiments, the cleaning component 130 includes four cleaning brushes 131, with two cleaning brushes 131 at each end of the opening and closing plate 121, and one cleaning brush 131 on each of the two opposite sides of each baffle 122.
[0050] For example, each baffle 122 is provided with a cleaning brush 131 on both sides, so that during the movement of the baffle 122, the two cleaning brushes 131 can clean both sides of the baffle 122 at the same time, further improving the cleaning effect of the baffle 122.
[0051] See again Figure 4 As shown, in some embodiments, the main body 110 has a receiving groove 112, and the cleaning component 130 is installed in the receiving groove 112. Specifically, by installing the cleaning component 130 in the receiving groove 112, the outer side of the main body 110 is not exposed, and the receiving groove 112 is completely covered when the opening and closing plate 121 is closed, thereby improving the overall aesthetics of the range hood 100.
[0052] In some embodiments, the baffle 122 can be controlled to be housed within the receiving groove 112. Specifically, the baffle 122 can be driven to extend or retract from the receiving groove 112 so that during the housing process of the baffle assembly 120, the baffle 122 is hidden within the receiving groove 112, and the exterior of the main body 110 is only covered by the opening and closing plate 121, further improving the overall aesthetics.
[0053] Continue reading Figure 6 As shown, in some embodiments, one end of the baffle 122 is connected to the main body 110 and the other end is connected to the opening and closing plate 121 so that it can move with the opening and closing plate 121.
[0054] For example, one end of the baffle 122 is located in the receiving groove 112, and the other end is connected to the opening and closing plate 121. Thus, when the opening and closing plate 121 is opened, the baffle 122 is positioned from within the receiving groove 112 along with the opening and closing plate 121, blocking both sides of the smoke inlet 111. When the opening and closing plate 121 is closed, the baffle 122 is retracted into the receiving groove 112 as the opening and closing plate 121 is pressed down. In this way, only one drive motor is needed to drive the rotation of the opening and closing plate 121, thus simultaneously realizing the opening and closing operations of both the opening and closing plate 121 and the baffle 122.
[0055] Furthermore, the range hood 100 provided in this application can adjust the opening and closing size of the hinged plate 121 through an intelligent adjustment mechanism. Based on different cooking conditions and the amount of oil fumes, it achieves adaptive control for different cooking scenarios. When there is heavy oil fume, the opening angle of the hinged plate 121 is small, the wind pressure is high, and the wind speed is high, thus improving the intelligence level and ease of use of the equipment.
[0056] Continue reading Figure 7 As shown, in some embodiments, the baffle 122 has a fan-shaped structure and is made of a foldable flexible material.
[0057] For example, the baffle 122 is made of an easy-to-clean flexible material for easy cleaning. Simultaneously, the foldable design of the baffle 122 allows it to be folded and stored in the receiving slot 112 like a folding fan, thereby reducing the space occupied by the baffle 122. This application effectively reduces the fluid channel area of the smoking area by having two baffles 122 open, thus dynamically optimizing the fluid channel area, significantly improving the negative pressure intensity, and causing the oil fumes near the cookware to be drawn in more concentratedly, reducing the escape of oil fumes. At the same time, the baffle 122 is made of a flexible material that is foldable. When the baffle 122 is not fully unfolded, it has a wavy shape, which has a guiding effect, directing the oil fumes to flow more concentratedly towards the smoking port 111, further improving the smoking efficiency.
[0058] Continue reading Figure 8 and Figure 9 As shown, in some embodiments, the baffle assembly 120 further includes a drive member 123, which is mounted on the main body 110 and has its output end connected to the baffle 122 to drive the baffle 122 to rotate.
[0059] For example, the driving component 123 is a forward and reverse motor, which can drive the baffle 122 to rotate, thereby achieving the blocking and opening of both ends of the opening and closing plate 121. That is, in this embodiment, the opening and closing plate 121 and the baffle 122 are driven by different motors, which further improves the precise control of the opening and closing plate 121 and the baffle 122.
[0060] The baffle 122 is a rigid plate and has a triangular or fan-shaped structure. When the baffle 122 has a triangular structure, the drive component 123 is connected to one corner of the baffle 122; when the baffle 122 has a fan-shaped structure, the drive component 123 is connected to the center of the baffle 122 to drive the baffle 122 to perform circular motion. Thus, the motion trajectory of the baffle 122 is designed as a non-linear path, and its motion trajectory is optimized based on fluid dynamics simulation results, resulting in a more reasonable distribution of the negative pressure zone and further improvement in smoke extraction efficiency. The range hood 100 provided in this application can adapt to complex cooking scenarios, enhancing the flexibility and adaptability of the equipment in controlling oil fumes.
[0061] Furthermore, the baffle 122 can be a corrugated plate to guide airflow when in the open state, thereby further improving the smoke extraction effect of the range hood 100.
[0062] See again Figure 8 As shown, in some embodiments, the baffle 122 is not located within the projection plane of the body 110 along the vertical direction of the smoking surface.
[0063] For example, the baffle 122 is a rigid plate and is disposed on the outside of the main body 110, so that the baffle 122 will not interfere with the main body 110 when the drive member 123 drives the baffle 122 to rotate. The cleaning member 130 is disposed on the inside of the baffle 122 and contacts the baffle 122, thereby cleaning the inside of the baffle 122. There is no need to add an additional installation position on the outside of the main body 110, thus simplifying the overall size.
[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0065] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A range hood, characterized in that, include: The main body is provided with a smoking surface, and the smoking surface has a smoking port; A baffle assembly is mounted on the main body and is controllably movable relative to the main body to open or close the smoke inlet. When the baffle assembly is open, it defines a negative pressure zone with the main body, and the smoke inlet is located in the negative pressure zone. A cleaning component is disposed on both sides of the baffle assembly, and during the movement of the baffle assembly, the cleaning component comes into contact with a portion of the surface of the baffle assembly.
2. The range hood according to claim 1, characterized in that, The baffle assembly includes an opening and closing plate and two baffles. The opening and closing plate is rotatable relative to the main body for opening and closing the smoking port. The two baffles are disposed opposite to each other at both ends of the opening and closing plate, and when the opening and closing plate opens the smoking port, each baffle and the opening and closing plate enclose the negative pressure zone.
3. The range hood according to claim 2, characterized in that, The cleaning component includes two cleaning brushes, each of which is disposed at both ends of the opening and closing plate, and during the movement of the baffle, each cleaning brush contacts a corresponding baffle.
4. The range hood according to claim 2, characterized in that, The cleaning component includes four cleaning brushes. Two cleaning brushes are provided at each end of the opening and closing plate, and one cleaning brush is provided on each of the two opposite sides of each baffle.
5. The range hood according to claim 2, characterized in that, The main body has a receiving groove, and the cleaning component is installed in the receiving groove.
6. The range hood according to claim 5, characterized in that, The baffle can be controlled to be housed within the receiving slot.
7. The range hood according to claim 2, characterized in that, One end of the baffle is connected to the main body, and the other end is connected to the opening and closing plate so that it can move with the opening and closing plate.
8. The range hood according to claim 7, characterized in that, The baffle has a fan-shaped structure and is made of a foldable flexible material.
9. The range hood according to claim 2, characterized in that, The baffle assembly further includes a driving component, which is mounted on the main body and its output end is connected to the baffle to drive the baffle to rotate.
10. The range hood according to claim 8, characterized in that, The baffle is not located within the projection plane of the main body along the perpendicular direction of the smoking surface.